Conversion burner



CONVERS I ON BURNER Filed March 22, 1930 I 3 Sheets-Sheet l I 1- 22 N 52 I r g :E'IE l IE'IE E IEIE E I N V EN TOR. V/ZZ/JPa 0/00 A TTORNEYS.

Nov. 28, 1933. v. J. PAULOO CONVERSION BURNER Filed March 22, 1930 3 Sheets-Sheet 2 INVENTOR.

I V/CTOI'JPau/oo a ZZZ) wim ATGNEYS.

CONVERS ION BURNER Filed March 22, 1930' 3 Sheets-Sheet 3 INVENTOR. 14675111 Pau/ao A TTORNEYS.

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Patented Nov. 28, 1933v UNITED STATES 7* CONVERSION BURNER My invention relates to gas burners suitable for heating dwellings and the like. 1

It is an object of theinvention to devise a gas burner which is economical in operation and I B which will operate at high efficiency.

Another objeot is to devise a gas burner which can'be installed in a furnace primarily designed. 'for other kinds of fuel.

Afurther object is to devise a burner which is easy tov install and which will. require no servicing over a long period of time.

A still further object is to devise novel means in a gas burner for effectively radiating heat.

'These and other objects willbecomeapparent as the detailed description of my invention pro:-

drawings in which: I

Fig. '1 is a perspective view of my novel burner installed in a furnace.

Fig. 2 is an exploded side elevation showing'the relative positions of the several parts of the burner.

Fig. 3 is an" end of the parts shown in Fig. 4 is a plan view of my novel refractory basket for. supporting heat/radiating elements. p

Fig. 5 is an elevation of the basket shown partly in section along lines 5--5 of Fig. 4.

I r Fig. 6 is aplan view of a split burner head.

Fig. 7 .is'a plan view showing the burnerhead and the refractory basket in operating relation.

" Fig. 8 isfa. detail View of a pilot mounting. [I

. Briefly, the invention relates to gas heaters'in which a pluralityof refractory radiantsare utilized to radiate heat. A support preferably having a basket-like form is employed for supporting the radiants in an efficient position above the burner, Itis desirable to support the; radiants in such a position that they will present relatively large radiating surfaces forradiating heat to the wallsof a heating chamber. The supporting basket is. designed with this purpose in view.

Referring. to the drawings a. burner head di-4 vided into two parts 16 and 17 is shoivn upon which is supported a refractory basket 18 for holding a plurality of refractory radiants 19.- In Fig. l'I'have shown my gas heater installed in I a hot air furnace from which the grate has been I removed and in a similar mannerthe heater'can be installed in other types of furnaces and heaters'merely by removing the interfering or ob structing parts. In the modification illustrated, I have shown the burner head in two parts 16 and 17 to facilitate insertion through a door or other burner head; through an intake'pipa22, through a pipe connection 23, through asuit'able orifice] 2e,- into the Venturi mixer 2 1 andthrough elbow? I i .ants is preferably made of cast iron and-comprises Attention is directed to the accompanying relativelyhat and lie i -substantially vertical openingin thefurnaoe iii/here an openihgin'.

the furnace is large enough to permit the inse rtionofan integral burner ofsufiicientareathe' burner need not, of course, be made in separable l parts; :When the burner isgmade, inseparable parts, however, each part is preferably .supplied' with a combustible mixtureof "gas and aiigby a separate Venturi mixer 21. Gas is fed to the 26 to the burner head. A suitable shutter 27 ycan beemployed to regulate the-amount of air entering Venturi mixer21..

The basket, 18- for holding the refractory radia a central hub ZS-from which extend; a'plurality of radially disposed arms 29, each of which supports a segment 31.;The. radialarms v29 are -5 planes passing through the center of the basket. Thus, only a relatively ,narrow edge of; each I arm faces the burner flame. -This construction pre' eludes the absorption of any substantial amount of heat by radial arms 29 and doesnot dei'lfectjthe flame from-the refractory radiants 19- which-are adapted to be piled in basket 18. For; positioning basket 18 so that even theedges ofradial arms 29 do not'interfere with the flamefrom the burner, a plurality of slots, 32 are provided in hub -member -;28 to;regis't;er withicorresponding lugs 33 on the, burner -head. .Thelugs 33 preferably,

' position basket 118 so that radial arms. 29am placed intermediate the radial portions 3 4 ofthe .90"

burner flame.- As shown in Fig. "I segments 31 I are preferably positioned to one side of thejfia me I emanating fronrthe ring portion of the. burner head. Thus, only relatively small portions 'ofsegments 31 are positioned directly over the' flame and the lower corners of the segments-31 are cut away, as at 36, to stillifurther minimizethe interfering portions. A suitable space is provided between adjacent segments sothatthe "I basket 18 can expandand contract without danger of. cracking. It: will be noted that -.each radial arm 29 isfsup'ported only at one to I hub'28, thus allowing each of :these members to f expand andcontract. independently. Y Preferably, a suitable horizontal ledge or shelf 9 .sr-dissipatedis cariied'by convection currents and.

38 is formed on the upper portion of hub 28 to support the inner ends of radially disposed refractory radiants which are adapted to be piled in the basket. When the refractory radiants 5 are piled radially, the outer ends of the radiants can extend over the upper edges of segments 31 into the path of the flame. Since the upper edges of segments 31 are substantially higher 7 than the centrally disposed'ledge"38,the radiants'will" be inclinedat an angle to "wall 39 of the heating chamber and will therefore'present relatively large heat radiating surfaces toward this wall.

' .To facilitate piling certainones of the refrac tory radiants radially, a suitable abutment4l can be provided on the horizontalledge-"38. This.

abutment a1 is preferably in the-form of a ring and projects above the "ubhr's'urfaceof l'edge 38. Oneend of each of the lowermostra'diants in the pileis adapted to abut against abutment 41, thus retaining theremains so piled scurely' irr'place. Other radiants' can then "be' piled on conyenient m'anner; V The burner head canbe provided on its outer periphery with a plurality of sp'acing'lugs 43 to- 1 prevent thebur'ner head from being positioned" too closely to the heater. Preferably lugs 43 are oi? such size that they cause a' sufiicient space "to' be left around the bur'ner head to allow an" also provided with a plurality of heat dissipating -fihs M. Preferably 'fins' 44am disposed on the" lowerside of the* burner head for convenience, lit it is to be understoodthat these finscan be rn'ounted' in any desiredposition. Fins 44 serve to-dissipate heat from the burner head and thus tendtokeep theburner cool. i The heat thus b" radiation to the'walls' of the heating chamber -"t'o be'thus utilmed.

to employ automatic devices controlled c mrnon 't'h'e 'eri'ods of operation'of the heater.

fra'meis i iis'ually' employed in connection with such automatic devicesand for'this reason I'prois fniounted *m asny for by an inexperienced e'rsonand occasidnally i't'fails to function'prop- 'erly 'ori'faccount' 'of its being positioned inaccurately, To'-"preclude"this possibility, 'Ipr'efer to fix the position of pilot 54 by providing ainountmg on the burnerhead. Thismounting is shown v g m daau in 8jand comprises a boss 47 on thebottom of --the burner 'for securing a bracket "'48 as by means of asc'rew 49. Bracket e8 carries pipe*'52 is adapted to'be inserted. Supply pipe 352; is preferably held in position within tube 45 "bydepressionsbl in'the tube which engage the "surfacebffthe" supply pipe. A pilot tip 46 of 'suitablemateriaL-such aslava, is' adapted to be I supported on the end'o'fsup'ply pipe 52 in the cor went mounted on the outer end of certain ones .-0f said 'radial-arms each of said segments being in neatmgtpparams :jof-this character it is ks; thermostats; and the I like to regulate.

A pilot an 'up'standing tube 45' within which 'a supply basket is inoperative position.-

radiated to the side walls 39 of the heating chamber and convection currents of heated gases of combustion serve to heat the upper parts of they heating chamber. Thus, heat is transmitted efficiently to all parts of the heating-chamber.

While I have described a particular embodiment of my invention, I'do not Wish to be limited thereto, since the invention as defined in the appended claims may be embodiedfinya plurality or-rams;

-- I- claim: v v

1. In a gas burner, a basket for supporting .heat refractory material, said basket having'a centrally disposed hub, a plurality of radial arms extending'froni 'saidhub and a cylindrical segcarried by one-of s'aidradial arms only. 1 2. In a gas burner, a basket for supporting.

heatrefractory material, said basket having a centrallydisposedcylindricalhub plurality of Y substantially plane radial arms? efiendingfiom said hub and a cylindrical segmentnflounted on the outer end of c'eitaiifo'nes of saidr'adial arms,

each of said'segments, being carriedbyoneof said radial'arms'only. 1

'3. In a" gas burner, a basketfl "supporting heatlrefractory'materialfsaid b'a etFh'aving a centrally disposed' cylindrical hub, aplurality of substantially plane radial "arms""'eiz't'eii'ding "from said hub, a cylindricals'egment mounted on the outer end of certain'onesof said"' radia arms,

and a substantially horizontally disposed""ledge mounted on said hub, saidledge having'afrela? I tively'lar'g'e' central bpeningthe're'intofacilitat lm' upward passage of convection currentsof "the gases of combustion andirit'ermingled' air.

4-.. In a gas burner, a basketffor i's'uppoiti'ng heat refractory material," saidFbas'ket "having a;

centrally disposed cylindricahhubf a"plurality 1l5 "of substantially plane *radiakbrr'ns' extending from said hub, a cylindrical"seginntf' mounted on the outer end of certain ones of saidradial arms; and a substantially horizontally disposed, annular ledge mounted 'on said hub, saidl'eiige having ajrelatively largepen'tral" o'penin'gtherein,

and an'abutment projecting frbni'thihiihledge of said led'ge; x

5 ."In" a gas b'urner a basket for supporting heatrefractory material, said 'basketfhaving a l25 V centrally disposed cylindrical, hub, a; plurality of substantiallyplane radial arms extending from,

said hub, a cylindrical segment mounted'on the outer 'end of certain ones "of 'saidradial'farms and a substantially horizontally disposed ledge mounted on said hub,'one'ed'ge of each ofsaid" "cylindrical segments being substantially higher than said ledge; l

SQIn a gas burner, a basket 'for' supporting g-heat refractory material, said basket'having a "centrally disposed cylindrical hub; a plurality of substantially plane radial arms extendingfromv said hub and a cylindrical segment mounted on the outer end of certain'ones of fsaidradial'arms,

each of said cylindrical segments being"carried7 14 0' by one of said radialarms only',-whereby""each arm and its .associated segment are free tofexpand and contract independently, the wider fs'urfaces of said radialarms and of said cylindrical segments being vertically disposed,"whereby'rela l5 tively small edge areas only ofthese'eleme'nts are faced toward' the burner 'head wh'en -th VICTOR 'PAULoo. v, 

